Jet skis are a big no no in Menorca I don't know of any company on the whole Island who have a licence to hire them. There should be pedalos kayaks ect on the beach but it depends on who takes up the franchise for the year. A 30 - 40 minute easy walk along the coastal pathway, 5-10 mins drive is the resort of S'Algar. S'Algar Diving have their long established water sport company here. They did last, time I enquired, offer other water sports so I would contact them and ask what they have to offer. salgardiving.net
Salgar diving website wrote:For the family and more adventurous, we also offer snorkelling trips to enable you to explore Menorca's beautiful coastline and can organise other sports as well.. We look forward to having you dive with us.